Malicious PDF — malware analysis report

Static analysis result for SHA-256 899b076c3262b1d7…

MALICIOUS

PDF

35.0 KB Authoring application: pstoedit First seen: 2020-06-01
MD5: 4defbebcb2f30511689209c6ff1be911 SHA-1: 9393e40b5c97f757f693f77f8dae9ed33e8e5061 SHA-256: 899b076c3262b1d7b7f9a92bff013fb22d41c4cec649d77640a1d741c1434590
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by multiple heuristics, including a critical finding for a large external PDF link farm. The embedded URLs point to numerous PDF files hosted on various domains, suggesting a campaign to manipulate search engine results or distribute additional malicious content. No scripts were extracted, but the sheer volume of outbound links indicates a high likelihood of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://balticsportsciencesociety.com/uploads/1/3/0/2/130288729/900095.pdf In PDF document text
    • http://angelsandwine.com/uploads/1/3/0/2/130273573/kovuxowa.pdfIn PDF document text
    • http://bfreshcreative.com/uploads/1/3/0/2/130288893/rokoxosuwodizod.pdfIn PDF document text
    • http://msjacksonsclass.com/uploads/1/3/0/6/130604411/644588d28dd7d.pdfIn PDF document text
    • http://xisiro.aewjasw.icu/uploads/2020/01/28/tidulatexol.pdfIn PDF document text
    • http://lightprod.fun/uploads/2020/01/29/joveveworexom.pdfIn PDF document text
    • http://sake.faring8.net/uploads/2020/01/28/jisututu_tigojaruka_fefugakeraxiwo_kuwuxogevuve.pdfIn PDF document text
    • https://miforefafiwa.weebly.com/uploads/1/3/0/2/130272267/rinuwuzajok_ponebukog.pdfIn PDF document text
    • http://danum.asdklo.xyz/uploads/2020/01/28/gapeze.pdfIn PDF document text
    • http://stan.holyrood-drama.com/uploads/1/3/0/4/130436037/nazuvovura.pdfIn PDF document text
    • https://kojilarofalikel.weebly.com/uploads/1/3/0/5/130539922/samen.pdfIn PDF document text
    • http://baddazzbikes.com/uploads/1/3/0/6/130621322/vugisajozutijevimumu.pdfIn PDF document text
    • https://dasuninuko.weebly.com/uploads/1/3/0/3/130379175/948022.pdfIn PDF document text
    • http://lovingyourlifeathome.com/uploads/1/3/0/5/130551362/859acf11.pdfIn PDF document text
    • http://koffienator.nl/uploads/1/3/0/2/130271103/5359750.pdfIn PDF document text
    • http://north-shore-aerial-imaging.com/uploads/1/3/0/2/130270946/4175696.pdfIn PDF document text
    • http://cams-collection.com/uploads/1/3/0/4/130435581/safapivigikufav.pdfIn PDF document text
    • https://raromofax.weebly.com/uploads/1/3/0/2/130271240/gubaja.pdfIn PDF document text
    • http://mourntolight.com/uploads/1/3/0/6/130620435/130620435.html#bekaboy+nyimbo+mpyaIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001514.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1514 7884 bytes
SHA-256: f59da70749990039b0c2cb9b4d504d9229595f8a4f1efc36f9dd6c6e4ce3d3ba